The Locking-Cap Flexible Luer 4-Way Connector (JT-036) offers a reliable single-use connection, stable dimensions and smooth sealing surfaces, molded from polycarbonate for IV infusion sets and fluid-transfer lines. Baixin Bio supplies it with consistent lot-to-lot quality and OEM/ODM options.
Definition
A locking-cap flexible luer 4-way connector is one of the small standardized parts that make a medical fluid path work. Its job is to connect, seal or control flow between two segments of a line, and it is manufactured from device-qualified plastics for reliable single-use performance.
What separates a medical-grade part from a generic fitting is repeatability. Sealing surfaces are smooth and consistent, dimensions hold across the lot, and the resin is selected for fluid compatibility and sterilization.
It helps to picture where the part sits. A finished single-use device — an IV set, a transfer line, a dialysis circuit — is an assembly of molded plastic pieces joined into one fluid path. Each piece has a narrow job, and the value of standardization is that pieces from a catalog snap together predictably, so an assembler can design around known interfaces instead of bespoke fittings.
About This Component
The Locking-Cap Flexible Luer 4-Way Connector is supplied as a single-use molded part for IV infusion sets and fluid-transfer lines. Its interface follows standard conventions so it mates predictably with compatible components, and it is produced in polycarbonate by default, with other medical-grade resins available on request.
Like all Baixin Bio components, it can be customized for material, color, dimensions, packaging and assembly. For a precise specification — exact dimensions, tolerances, sterilization validation, packaging counts and minimum order quantity — request a drawing and samples through the inquiry form.
Key Advantages
The reasons locking-cap flexible luer 4-way connector is specified come down to a few concrete advantages:
- Supports OEM and ODM customization of dimensions and packaging
- High-volume manufacturing with stable quality
- Compatibility with common sterilization methods
- Standardized interface that interoperates with compliant luer components
- Leak-resistant seal that holds under normal line pressure
In short, the component earns its place by being unremarkable in the best way: it fits, it seals, it is available, and it behaves the same every time, so engineering attention can go to the device rather than the fitting.
Common Applications
In practice, locking-cap flexible luer 4-way connector appears wherever a controlled fluid connection is needed:
- Syringe and pump connections
- IV infusion sets
- Blood and fluid transfer lines
- Hemodialysis circuits
Across all of these uses, the underlying requirement is the same: a connection that is secure, leak-resistant and safe to make once and discard. That is why standardized, single-use molded components dominate the category — they remove variability from the most failure-prone part of a fluid path, the junction, and they let a device be assembled quickly and qualified as a unit.
How to Specify and Choose
When you select a component, work through these variables before requesting a quote:
- The fluid and its chemical compatibility with the candidate resin
- The inner and outer diameters of the tubing the part bonds to
- The sterilization method the finished device will undergo
- Whether the part is single-use or intended for limited reuse
- Color coding or opacity requirements for the assembly
With those answers in hand, a supplier can confirm a standard part or scope a custom one without back-and-forth. Sharing a drawing or a physical sample removes the remaining ambiguity.
Industry Standards
Small-bore connectors for liquids and gases are governed by the ISO 80369 family, which is progressively replacing the historical luer standard to reduce the risk of misconnection between different clinical applications. Medical-grade resins are selected and documented for biocompatibility, and finished components are sterilized by validated methods such as ethylene oxide (EO), gamma irradiation or steam autoclave depending on the material.
For polycarbonate components, the practical sterilization options are gamma and ethylene oxide (EO); the choice is confirmed against the finished device and its validated process.
The reason the standards landscape moved toward ISO 80369 is patient safety: when every line used the same luer taper, it was physically possible to connect, say, an enteral line to an intravenous one. The newer series give different applications deliberately incompatible geometries so a dangerous misconnection cannot be made by accident. For a component maker, that means confirming which series an application requires before specifying a part.
This page is informational and does not replace device-specific regulatory or validation guidance. Confirm exact standards, biocompatibility and sterilization requirements for your product with your quality team and your supplier.
Frequently Asked Questions
Is locking-cap flexible luer 4-way connector available for OEM or ODM projects?
Yes. Baixin Bio manufactures to drawings and samples, customizing material, color, dimensions, packaging and assembly. Send your specification for a quote.
What materials are used?
Depending on the part, medical-grade PC, PP, PVC, ABS, PE or POM is used, selected for the connection method, fluid path and sterilization requirement.
How is it sterilized?
Components are compatible with validated single-use sterilization such as ethylene oxide, gamma irradiation or steam autoclave, depending on the resin. Confirm the method for your device.
Is it compatible with ISO 80369?
Luer interfaces follow small-bore connector conventions. Confirm exact ISO 80369 series compatibility for your application with Baixin Bio before specifying.
What order volumes are supported?
Baixin Bio supplies disposable device assemblers in production volumes, with consistent lot-to-lot quality and export-friendly communication.
Can I request samples?
Yes. Samples and drawings are welcome and recommended before committing to volume. Use the inquiry form to request them.
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Need Medical Connectors or Components?
Baixin Bio manufactures luer connectors, valves, drip chambers, clamps, caps and tubing, with OEM and ODM customization. Send your drawings or samples for a quote.
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